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REASONING
Ball bearings are used in cycles and sco...

Ball bearings are used in cycles and scooters to

A

1.reduce friction between ground and vehicle

B

2. increase friction between wheel and axle

C

3.reduce the area of contact between the two surfaces in contact

D

4.reduce friction between wheel and axle

Text Solution

Verified by Experts

The correct Answer is:
D
We know that ball bearings are used in cycles and scooters to reduce the friction between wheel and axle.
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